Shaving device and cutter head therefor



E. J. TE PAS ET AL SHAVING DEVICE AND CUTTER HEAD THEREFOR Oct. 27,1942.

Filed Nov. 9, 1938 0 m w 35% VI. .0 mp

Mug/m0 Patented Oct. 27, 1942 SHAVING DEVICE. AND CUTTER HEAD THEREFOREdmund J. Te Pas, Euclid, Ohio, and Emil G.

Berg, Erie, Pa.; Coletta A. Te Pas, administratrix of said Edmund J. TePas, deceased Application November 9, 1938, Serial No. 239,630

7 Claims.

This invention relates to improvements in a shaving device and moreparticularly to the cutter head of such a device.

This application is a continuation-in-part of our copending applicationSerial No. 21,418 for Shaving device which was filed on May 14, 1935.

The invention has for one of its objects the provision of a shavingdevice having an improved form of cutter head which is adapted to rakeup and dislodge hairs lying close to the skin while at the same timeshearing oil the hairs Very close to the surface of the skin.

A further object of the invention relates to the provision of adjustablemeans whereby the closeness of the cutting of the device may be variedwithin certain limits.

These and other objects of the invention will become more apparent andbetter understood after consideration has been given to the followingdetail description of the invention, taken in connection with thedrawing which shows, merely by way of illustration, structure adaptedfor carrying out the objects of the invention.

In the drawing:

Figure 1 is a side elevational view, partly in section, of a shavingdevice illustrating one embodiment of the invention;

Figure 2 is an enlarged perspective view of a slightly modified form ofcutter head from that shown on the shaver in Figure 1;

Figure 3 is an enlarged sectional view of another modified form ofcutter head taken on line 3-3 of Figure 4;

Figure 4 is a plan View of the face plate of the cutter head shown inFigure 3;

Figure 5 is a detail sectional view taken on line 5-5 of Figure 3;

Figure 6 is an enlarged perspective view of a modified form of cutter;

Figure 7 is an enlarged perspective View in section of a cutter heademploying a cutter of the type shown in Figure 8 and a slightly modifiedform of the face plate from that shown in Figure '7.

The shaver shown in Figure 1 comprises a handle formed from matinghalves l and 2, which is adapted to detachably carry at one end a cutterhead comprising a guard member 3 and a reciprocable cutter 4. The guardmember 3 is provided with a face plate 5 which is slotted like the faceplate of the guard member shown in Figure 2 and differs therefrom onlyin that it does not have a central comb portion as shown in the latterconstruction. The cutter 4 is provided with cutter teeth 6 similar tothe teeth of the cutter shown in Figure 2. The cutter is guided at oneedge for movement in a slot 1 formed in the base 8 of the guard memberand the cross-piece ID of the cutter maintains the cutter in properposition in its movement in the guard member.

The cutter is reciprocated in the guard memher by means of an eccentricpin II which is received within a suitable slot l2 formed in the cutter.The eccentric pin is carried on one end of a power-driven shaft I3 whichmay be driven by an electric motor (not shown) inside the handle whichis formed by the handle parts I and 2. The handle structure is providedwith a cap part I4 and the cutter head is held in place by means of apair of screws, one of which is shown at l5.

The modified form of cutter head shown in Figure 2 comprises a guardmember 20 having a row of hair-receiving openings or tapered slots 2| atone edge of the guard member and a second row of hair-receiving openingsor tapered slots 22 at the opposite edge of the guard member. Theseslots are of such width, and the metal defining the slots is of suchthickness, so that in the use of the device the skin of the user willproject just to, but not beyond the underside of the guard member at theplace where the cutting of the hairs takes place. It should be notedhere that the cutter bars of the guard member which define the marginsof the guard member slots, are thinnest along a line coinciding with theend points of the cutter teeth for all of the different modificationsshown here- Hairs which project through the slots will be sheared off bythe teeth 25 of the cutter 23 at the narrow end portions of the slots 2|and 22 and hairs which lie close to the skin will be raked up anddislodged by the toothed comb portion 24 which is located between theinner ends of the slots 21 and 22. I

Aside from the comb teeth 24, the modified form of cutter head shown inFigure 2 is constructed similar to the cutter head shown in Figure 1 andit may be driven in the manner illustrated in connection with that View.

Figure 3 shows another modification of the cutter head and it comprisesa guard member 30 within which a cutter 3| is reciprocably mounted. Theguard member is provided with a base 32 which is slotted at 33 forguiding the cutter in its movement. The cutter is provided with across-piece 34 which cooperates in guiding the cutter in its movementsin the guard member. The guard member has a plurality of tapered slots35 along one side of the face of the guard member and a similar seriesof slots 36 along the opposite side of the face of the guard member.These slots are similar to those previously described in connection withthe guard member shown in Figure 2.

The central portion of the working face of the guard member is slightlydepressed at 31 and at the opposite margins of this depression a row ofcomb teeth 38 and a row of comb teeth 40 are located. These comb teethfunction in much the same manner as the'ccmb teeth 24 for the form ofthe device illustrated in Figure 2, and they serve to dislodge and rakeup hairs lying close to the skin. The cutter (ii is provided with twoseries of oppositely disposed cutter teeth M and 42, respectively,somewhat similar to those shown in connection with the cutter 23 ofFigure 2.

In the form of the device illustrated in Figure 3, the cutter 31 islongitudinally slit at 43 and tapered screws 44 and 25 are threadablyfitted at the opposite ends of such slit for the purpose of expandingthe cutter to adjust the teeth lengthwise of the slots 35 and 36 so thatthe ends of the teeth may be adjusted to sweep across wider or narrowerportions of the slots as may be desired. The closeness of the cutting,thus, may be increased by having the ends of the cutter teeth sweepacross the wider portions of the slots. The cutter 3! is provided with aslot I2a, similar to the slot !2 of the cutter shown in Fig. 1, forreceiving a driving member, and the cutter head shown in Figs. 3 to 5 isadapted for use in connection with a handle and power driving means ofthe type shown in Fig. 1.

Fig. 6 illustrates a modified form of cutter.

The cutter comprises a body member 58 having a cross piece 5| and abifurcated tongue 52. Two

angularly disposed series of cutter teeth 53 and 54 are formed fromrelatively thin vertically disposed blades notched intermediate theirlength and arranged at an angle cross-wise of the cutter.

Fig. '7 illustrates a face plate iii having a longitudinally extendingchannel or groove H which is located midway of the side edges of theface plate and by providing oppositely disposed rows of comb teeth 76along the edges of this channel, the efficiency of the face plate isincreased. It will be understood that this head may operate emcientlywithout the channel or groove 1!. The purpose of the channel H and thecomb teeth thereat is to facilitate the entry of hairs into theinnermost ends of the narrow portions of the slot as the device is movedacross the face so that the hair may be fed with ease into both seriesof the slots upon each stroke of the shaver.

This form of construction also adds somewhat to the strength of thedevice by providing 'a substantial area of unslotted material at thecenter of the face plate. The face plate It is held in thechannel-shaped body member 12 of the cutter head by means of pins orrods 73 and M which extend through the corner portions of the channelmember. The cutter illustrated in Fig. 6 is used with the face plateshown in Fig. '7.

The slots of the face plate is have wide portions 55a and 5M andcommunicating narrow portions 56a and 58a, respectively. Combingprojections 63a are provided at the outer ends of the narrow slots 58aand at the other side of the face plate a corresponding series ofcombing projections 64a are provided. In some of the species of theinvention the slots at one side of the face plate of the cutter head areshown in alignment with the slots at the other side of the face plateand in the other species the slots of one series are staggered withrespect to the slots of the opposite series. Either one of these twoarrangements may be used with any one of the different face platesdisclosed herein.

The foregoing description and the accompanying drawings to which itrelates, describe what might be termed the preferred modes of practicingthe invention. It is to be clearly under- 3 stood, however, that theinvention includes each and every novel feature or combination of novelfeatures herein disclosed, subject only to the restrictions of the priorart and the scope of the appended claims, and that the invention mayassume other forms and it is not to be limited to the particular andspecific structure shown and described herein.

Having thus described our invention, what we claim is:

1. In a dry shaving implement, an outer stationary member with a faceplate slotted to present oppositely arranged series of shearing teeth,and an unslotted portion .depressed below the plane of said teethconnecting the opposite series of shearing teeth, the slots of said faceplate extending to the edge of said depressed portion.

2. In a dry shaving implement, an outer stationary member with a faceplate slotted to present oppositely arranged series of shearing teeth,and an unslotted portion depressed below the plane of said teethconnecting the opposite series of shearing teeth, the slots of said faceplate extending from the longitudinal margin of said face plate to theedge of said depressed portion.

3. In a dry shaving implement, an outer stationary member with a faceplate slotted to present oppositely arranged series of shearing teeth,and an unslotted portion depressed below the plane of said teethconnecting the opposite series of shearing teeth, the slots of said faceplate extending to the edge of said depressed portion and being providedthereat with comb teeth for guiding hairs into the slots.

4. In a device of the type described, a relatively stationary cutterelement comprising two series of widthwise-extending cutter bars withthe ends of the bars of one series terminating closely adjacent to thecorresponding ends of the bars of the other series and hair-.dislodgingmeans intermediate the two series of cutter bars.

5. In a device of the type described, a relatively-stationary cutterelement comprising two series of widthwise-extending cutter bars withthe ends of the bars of one series terminating closely adjacent to thecorresponding ends of the bars of the other series, and comb meansbetween the two series of slots, said comb means being arranged so asnot to extend above the level defined by the topmost portions of saidcutter bars.

6. A shaving device comprising, a guard member having formed in one facea series of tapered slots of relatively narrow width at one end, acutter member movably mounted in said guard member, said cutter memberhaving teeth movable across the narrow end portion only of said slots,means for effecting relative adjustment between the guard member andcutter member lengthwise of the slots of the guard member, and means fortranslating said cutter member.

'7. A shaving device comprising, a guard member having two series ofslots, one located oppositely to the other, a cutter member movablymounted in said guard member and having toothed portions movable acrossone of the end portions only of the slots of each of said series, meansfor effecting relative adjustment between said guard member and saidcutter member lengthwise of the slots of the guard member, and means fortranslating said cutter member.

EDMUND J. TE PAS. EMIL G. BERG.

